Shaving-machine.



NITED STATES Patented May 9, 1905.

PATENT OFFICE.

SHAVlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 789,251, dated May 9, 1905.

Application filed November 5, 1903. Renewed October 21,1904r Serial No. 229,428.

To all whom it may concern.-

Be it known that I, J OHN A. BENEDICT, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented new and useful Improvements in Shaving-Machines, of which the following is a specification.

This invention relates particularly to that class of shaving or planing machines having a fixed knife and a reciprocating carriage which carries blocks of Wood back and forth under the knife.

The object of the invention is to produce a machine characterized particularly by improvements with respect to the means for producing the reciprocating motion of the bed or carriage.

A further object is to provide improved means for controlling said motion. Other improvements and advantages in details of construction will be evident from the description.

In the accompanying drawings, Figure 1 is a side elevation of the machine. Fig. 2 is a plan thereof, and Fig. 3 is an end elevation.

Speaking generally, the invention comprises a rocking bed supporting a shaving-knife, a sliding carriage on the bed to carry the blocks of wood under the knife, and gearing operated by rocking the bed to advance or return the carriage.

In the accompanying the supporting-frames of the bed, and 8 the sliding carriage. The bed rocks sidewise on the top cross-beams 6 of the supporting-frame, said beams being curved, as at 6", to permit this movement, the pivot, formed bya bolt or rod, being indicated at 6. The bed is flanged, as at 7 to support the knifebar 9 and to form guideways for the carriage 8. The knife is indicated at 9 set in its bar at an angle over and across the bed, and 9 indicates a spring-plate over and in front of the cutting edge of the knife to prevent the blocks jumping and hold them to the knife.

Bearings 7 b are secured to the under side of the bed forv the shaft 11, which carries pinions 11 in mesh with racks (indicated at 8*) formed on the under side of the side bars of the carriage 8. The bed has suitable openings to let the pinions through.

drawings, 6 indicates machine, 7 the.

' 12 indicates a drive-shaft the speed of which is reduced by spur-gears 12* and 13, the lat ter on a counter-shaft 13. The shafts arejournaled in suitable bearings in the frame of the machine, and shaft 12 carries suitable fast and loose pulleys and a fly-wheel.

The shaft 13 carries a spur-Wheel 13 and the wheel 13 has an internal friction-flange 13. The shaft 11 carries a spur-gear 11 in suitable position to be thrown in mesh with the spur-wheel 13 when the bed is rocked in one direction and also carries a friction-pinion 11, in position to be thrown in contact with the flange 13 when the bed is rocked in the other direction. It will be seen that When actuated by the external gears 11 and 13 the shaft 11, and consequently the carriage 8, W111 be moved in one direction and when actuated by the friction-gears will be moved in the opposite direction. The direction of rotation is preferably such that the cog-wheels give the direct motion and the friction-wheels the return, so that the greater size of the internal wheel 13 gives a quicker return. Normally both the direct and return gearing is out of gear. The bed is rocked to throw either in gear by means of hand and foot levers, (indicated at 1 1 and 15, respectively.) The handlever is connected to the bed by toggles 14: and rod 14: and the foot-lever by a rod 15. By forcing down the foot-lever or flexing the togglesby hand, or both, the side of the bed adjacent the driving-gear is lowered, causing the wheel 11 to mesh with the pinion 13 and by releasing the foot-lever and straightening the toggles the bed is rocked in the other direc'tion, throwing the friction-wheels in gear and causing the return motion.

The block of stock to be shaved is placed on the bed within the carriage, the forward movement of which carries the block under the knife to effect the shaving operation.

The spring 16 between the bed and one of the side beams of the frame acts to lift the bed and wheels out of gear when the downward pressure produced by the levers is released, the spring being of sufiicient length to lift the bed to its normal position with both the direct and the return gear disengaged.

To accommodate different thicknesses of wood, falsebottom the bed.

What I claim as new, and desire to secure by Letters Patent, is

1. The combination with a rocking bed carrying a knife, and a reciprocatingcarriage on the bed, of a feed-driving gear constructed to actuate the carriage in either direction according to the position of the bed.

2. The combination with a rocking bed having thereon a knife and carriage movable relative to each other, and a transmission-gear carried by the bed, of oppositely-acting driving-gears with either of which the transmission-gear may be engaged by rocking the bed.

3. The combination of a rocking bed having a cutter thereon, a reciprocating work-carriage thereon having a rack, a shaft journaled on the bed and having a pinion engaging the rack, a gear on the shaft, a driving-gear havplates may be placed on ing oppositely acting wheels, and means to rock the bed to throw the gear carried thereby into engagement with either wheel.

4. The combination with the rocking bed and knife carried thereby, and the reciprocating carriage on the bed, of the shaft journaled on the bed and geared to the carriage, and having gear-wheels thereon, and a driving mechanism having oppositely-acting gears with either of which one of said gear-wheels may be engaged by rocking the bed.

5. The combination with a driving-shaft having a spur-wheel and an internal frictionwheel thereon, of a rocking bed, a reciprocating carriage thereon, and a shaft carried by the bed .and geared to'the carriage and having spur and friction pinions extending between and'engageable respectively with the spur and friction wheels of the driving-shaft according to .the position of the bed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN A. BENEDICT Witnesses:

H. H. NORTHUP, S. W. KING. 

